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Rezolvati in IN ecuatiile:

a) [(x+3) :100 +98] :10-10=0

b) (x-120) :24= 238-138


Răspuns :

●[(x+3) : 100 +98] :10 -10=0 ●[(x+3) : 100 + 98] :10= 10 ●(x+3) :100 + 98= 10×10 ●(x+3) :100 + 98= 100 ●(x+3) :100= 100 -98 ●(x+3) : 100= 2 ●x+3= 100 × 2 ●x+3= 200 ●x= 200 - 3 ●x= 197